Boldrin & Levine: Against Intellectual Monopoly, Chapter
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Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission-Based Actuators
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Masters Theses Graduate School 5-2004 Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission-Based Actuators Sriram Sridharan University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_gradthes Part of the Mechanical Engineering Commons Recommended Citation Sridharan, Sriram, "Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission-Based Actuators. " Master's Thesis, University of Tennessee, 2004. https://trace.tennessee.edu/utk_gradthes/2205 This Thesis is brought to you for free and open access by the Graduate School at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Masters Theses by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. To the Graduate Council: I am submitting herewith a thesis written by Sriram Sridharan entitled "Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission-Based Actuators." I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the equirr ements for the degree of Master of Science, with a major in Mechanical Engineering. Arnold Lumsdaine, Major Professor We have read this thesis and recommend its acceptance: William R. Hamel, Frank H. Speckhart Accepted for the Council: Carolyn -
History of the Automobile
HISTORY OF THE AUTOMOBILE Worked by: Lara Mateus nº17 10º2 Laura Correia nº18 10º2 Leg1: the first car. THE EARLY HISTORY The early history of the automobile can be divided into a number of eras, based on the prevalent means of propulsion. Later periods were defined by trends in exterior styling, size, and utility preferences. In 1769 the first steam powered auto-mobile capable of human transportation was built by Nicolas-Joseph Cugnot. In 1807, François Isaac de Rivaz designed the first car powered by an internal combustion engine fueled by hydrogen. In 1886 the first petrol or gasoline powered automobile the Benz Patent-Motorwagen was invented by Karl Benz.This is also considered to be the first "production" vehicle as Benz made several identical copies. FERDINAND VERBIEST Ferdinand Verbiest, a member of a Jesuit mission in China, built the first steam-powered vehicle around 1672 as a toy for the Chinese Emperor. It was of small enough scale that it could not carry a driver but it was, quite possibly the first working steam-powered vehicle. Leg2: Ferdinand Verbiest NICOLAS-JOSEPH CUGNOT Steam-powered self-propelled vehicles large enough to transport people and cargo were first devised in the late 18th century. Nicolas-Joseph Cugnot demonstrated his fardier à vapeur ("steam dray"), an experimental steam-driven artillery tractor, in 1770 and 1771. As Cugnot's design proved to be impractical, his invention was not developed in his native France. The center of innovation shifted to Great Britain. NICOLAS-JOSEPH CUGNOT By 1784, William Murdoch had built a working model of a steam carriage in Redruth. -
Lean's Engine Reporter and the Development of The
Trans. Newcomen Soc., 77 (2007), 167–189 View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Research Papers in Economics Lean’s Engine Reporter and the Development of the Cornish Engine: A Reappraisal by Alessandro NUVOLARI and Bart VERSPAGEN THE ORIGINS OF LEAN’S ENGINE REPORTER A Boulton and Watt engine was first installed in Cornwall in 1776 and, from that year, Cornwall progressively became one of the British counties making the most intensive use of steam power.1 In Cornwall, steam engines were mostly employed for draining water from copper and tin mines (smaller engines, called ‘whim engines’ were also employed to draw ore to the surface). In comparison with other counties, Cornwall was characterized by a relative high price for coal which was imported from Wales by sea.2 It is not surprising then that, due to their superior fuel efficiency, Watt engines were immediately regarded as a particularly attractive proposition by Cornish mining entrepreneurs (commonly termed ‘adventurers’ in the local parlance).3 Under a typical agreement between Boulton and Watt and the Cornish mining entre- preneurs, the two partners would provide the drawings and supervise the works of erection of the engine; they would also supply some particularly important components of the engine (such as some of the valves). These expenditures would have been charged to the mine adventurers at cost (i.e. not including any profit for Boulton and Watt). In addition, the mine adventurer had to buy the other components of the engine not directly supplied by the Published by & (c) The Newcomen Society two partners and to build the engine house. -
Age of Steam" Reconsidered
A Service of Leibniz-Informationszentrum econstor Wirtschaft Leibniz Information Centre Make Your Publications Visible. zbw for Economics Castaldi, Carolina; Nuvolari, Alessandro Working Paper Technological revolution and economic growth: The "age of steam" reconsidered LEM Working Paper Series, No. 2004/11 Provided in Cooperation with: Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies Suggested Citation: Castaldi, Carolina; Nuvolari, Alessandro (2004) : Technological revolution and economic growth: The "age of steam" reconsidered, LEM Working Paper Series, No. 2004/11, Scuola Superiore Sant'Anna, Laboratory of Economics and Management (LEM), Pisa This Version is available at: http://hdl.handle.net/10419/89286 Standard-Nutzungsbedingungen: Terms of use: Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Documents in EconStor may be saved and copied for your Zwecken und zum Privatgebrauch gespeichert und kopiert werden. personal and scholarly purposes. Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle You are not to copy documents for public or commercial Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich purposes, to exhibit the documents publicly, to make them machen, vertreiben oder anderweitig nutzen. publicly available on the internet, or to distribute or otherwise use the documents in public. Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, If the documents have been made available under an Open gelten abweichend von diesen Nutzungsbedingungen die in der dort Content Licence (especially Creative Commons Licences), you genannten Lizenz gewährten Nutzungsrechte. may exercise further usage rights as specified in the indicated licence. www.econstor.eu Laboratory of Economics and Management Sant’Anna School of Advanced Studies Piazza Martiri della Libertà, 33 - 56127 PISA (Italy) Tel. -
RT Rondelle PDF Specimen
RAZZIATYPE RT Rondelle RAZZIATYPE RT RONDELLE FAMILY Thin Rondelle Thin Italic Rondelle Extralight Rondelle Extralight Italic Rondelle Light Rondelle Light Italic Rondelle Book Rondelle Book Italic Rondelle Regular Rondelle Regular Italic Rondelle Medium Rondelle Medium Italic Rondelle Bold Rondelle Bold Italic Rondelle Black Rondelle Black Italic Rondelle RAZZIATYPE TYPEFACE INFORMATION About RT Rondelle is the result of an exploration into public transport signage typefa- ces. While building on this foundation it incorporates the distinctive characteri- stics of a highly specialized genre to become a versatile grotesque family with a balanced geometrical touch. RT Rondelle embarks on a new life of its own, lea- ving behind the restrictions of its heritage to form a consistent and independent type family. Suited for a wide range of applications www.rt-rondelle.com Supported languages Afrikaans, Albanian, Basque, Bosnian, Breton, Catalan, Croatian, Czech, Danish, Dutch, English, Esperanto, Estonian, Faroese, Fijian, Finnish, Flemish, French, Frisian, German, Greenlandic, Hawaiian, Hungarian, Icelandic, Indonesian, Irish, Italian, Latin, Latvian, Lithuanian, Malay, Maltese, Maori, Moldavian, Norwegian, Polish, Portuguese, Provençal, Romanian, Romany, Sámi (Inari), Sámi (Luli), Sámi (Northern), Sámi (Southern), Samoan, Scottish Gaelic, Slovak, Slovenian, Sorbian, Spa- nish, Swahili, Swedish, Tagalog, Turkish, Welsh File formats Desktop: OTF Web: WOFF2, WOFF App: OTF Available licenses Desktop license Web license App license Further licensing -
Eaton® Repair Information
® Eaton October, 1991 Hydrostatic Transaxle Repair Information A 751, 851, 771, and 781 Transaxle 1 The following repair information applies to mance. Work in a clean area. After disassem- the Eaton 751, 851,771, and 781 series hydro- bly, wash all parts with clean solvent and blow static transaxles. the parts dry with air. Inspect all mating sur- faces. Replace any damaged parts that could cause internal leakage. Do not use grit paper, files or grinders on finished parts. Note: Whenever a transaxle is disassembled, our recommendation is to replace all seals. Lubricate the new seals with petroleum jelly before installation. Use only clean, recom- mended hydraulic fluid on the finished sur- faces at reassembly. Part Number, Date of Assembly, and Input Rotation Stamped on this Surface 6 The following tools are required for disas- Assembly Date of Part Number Input Rotation Build Code sembly and reassembly of the transaxle. (CW or CCW) • 3/8 in. Socket or End Wrench Customer • 1 in. Socket or End Wrench Part Number XXX-XXX XXX XXXXXX Factory ( if Required ) XXXXXX XX/XX/XX 11 Rebuild • Ratchet Wrench Code • Torque Wrench 300 lb-in [34 Nm] Original Build Factory Rebuild ( example - 010191 ) ( example - 01/01/91 11 ) • 5/32 Hex Wrench 01 01 91 01 01 91 11 • Small screwdriver (4 in [102 mm] to 6 in. Year Number of [150 mm] long) Day Year Times Rebuilt (2) • No. 5 or 7 Internal Retaining Ring Pliers Month Day Month • No. 4 or 5 External Retaining Ring Pliers • 6 in. [150 mm] or 8 In. -
Download Full-Text
Journal of Mechanical Engineering and Automation 2020, 9(1): 1-8 DOI: 10.5923/j.jmea.20200901.01 Verification of the Dynamic Characteristics of an Epicyclic Gear Train Using Epicyclic Gear Train and Torque Apparatus Mauton Gbededo1,2,*, Chukwuemeke Onyenefa2, Matthew Arowolo1 1Department of Mechatronics Engineering, Federal University, Oye-Ekiti, Nigeria 2Department of Mechanical & Biomedical Engineering, Bells University of Technology, Ota, Nigeria Abstract An epicyclic gear train consists of two gears, mounted so that the center of one gear revolved around the center of the other. A carrier connects the centers of the two gears and it rotates to carry one gear, called the planet gear or planet pinion, around the other, called the sun gear or sun wheel. The planet and sun gears were meshed so that their pitch circles rolled without slipping. A point on the pitch circle of the planet gear traced an epicycloid curve. This paper deals with analysis and verification of dynamic characteristics of an epicyclic gear train using the gear train and torque apparatus. The apparatus was installed in the Engineering lab while taking adequate safety precautions to ensure accurate collection of data. A record of the input, holding and output at various speed of the gear system were taken. At the end of the experiment, gear ratio, speed ratio and torque relationship of the epicyclic gear train were obtained. The experimental results were compared to the analytical data from various calculations using respective governing equations. It was observed that the experimental results were similar to the analytical data obtained for the speed ratio and torque relationship with a maximum 1.11% deviation between the two methods for torque relationship and 1.6% for the speed ratios, which were due to some frictional and mechanical losses in the belt and gear system. -
INDUSTRIAL REVOLUTION: SERIES ONE: the Boulton and Watt Archive, Parts 2 and 3
INDUSTRIAL REVOLUTION: SERIES ONE: The Boulton and Watt Archive, Parts 2 and 3 Publisher's Note - Part - 3 Over 3500 drawings covering some 272 separate engines are brought together in this section devoted to original manuscript plans and diagrams. Watt’s original engine was a single-acting device for producing a reciprocating stroke. It had an efficiency four times that of the atmospheric engine and was used extensively for pumping water at reservoirs, by brine works, breweries, distilleries, and in the metal mines of Cornwall. To begin with it played a relatively small part in the coal industry. In the iron industry these early engines were used to raise water to turn the great wheels which operated the bellows, forge hammers, and rolling mills. Even at this first stage of development it had important effects on output. However, Watt was extremely keen to make improvements on his initial invention. His mind had long been busy with the idea of converting the to and fro action into a rotary movement, capable of turning machinery and this was made possible by a number of devices, including the 'sun-and-planet', a patent for which was taken out in 1781. In the following year came the double-acting, rotative engine, in 1784 the parallel motion engine, and in 1788, a device known as the 'governor', which gave the greater regularity and smoothness of working essential in a prime mover for the more delicate and intricate of industrial processes. The introduction of the rotative engine was a momentous event. By 1800 Boulton and Watt had built and put into operation over 500 engines, a large majority being of the 'sun and planet type'. -
Obtaining a Royal Privilege in France for the Watt Engine, 1776-1786 Paul Naegel, Pierre Teissier
Obtaining a Royal Privilege in France for the Watt Engine, 1776-1786 Paul Naegel, Pierre Teissier To cite this version: Paul Naegel, Pierre Teissier. Obtaining a Royal Privilege in France for the Watt Engine, 1776- 1786. The International Journal for the History of Engineering & Technology, 2013, 83, pp.96 - 118. 10.1179/1758120612Z.00000000021. hal-01591127 HAL Id: hal-01591127 https://hal.archives-ouvertes.fr/hal-01591127 Submitted on 20 Sep 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. int. j. for the history of eng. & tech., Vol. 83 No. 1, January 2013, 96–118 Obtaining a Royal Privilege in France for the Watt Engine (1776–1786) Paul Naegel and Pierre Teissier Centre François Viète, Université de Nantes, France Based on unpublished correspondence and legal acts, the article tells an unknown episode of Boulton and Watt’s entrepreneurial saga in eighteenth- century Europe. While the Watt engine had been patented in 1769 in Britain, the two associates sought to protect their invention across the Channel in the 1770s. They coordinated a pragmatic strategy to enrol native allies who helped them to obtain in 1778 an exclusive privilege from the King’s Council to exploit their engine but this had the express condition of its superiority being proven before experts of the Royal Academy of Science. -
Intimations 1800-1825
Intimations Extracted from the Watt Library index of family history notices as published in Inverclyde newspapers between 1800 and 1918. 1800-1825 This index covers birth, marriage and death notices that appeared in newspapers in the Greenock and Port Glasgow area from 1800 until 1825. It is provided to researchers as a reference resource to aid the searching of these historic publications which can be consulted on microfiche, preferably by prior appointment, at the Watt Library, 9 Union Street, Greenock. Records are indexed by type: birth, death and marriage, then by year in chronological order followed by surnames in alphabetical order. Marriage records are listed by year and the surnames, in alphabetical order, of the spouses. The copyright in this index is owned by Inverclyde Libraries, Museums and Archives to whom application should be made if you wish to use the index for any commercial purpose. It is made available for non- commercial use under the Creative Commons Attribution-Noncommercial-ShareAlike International License (CC BY-NC-SA 4.0 License). This document is also available in Open Document Format. 1800-1825 Record When Surname First Name Entry Type Birth 1794 CRAWFORD A daughter to Mr and Mrs Hugh Crawford junior, writer, born at Greenock on 3rd December 1794. (Advertiser and Courant 11.12.1794) Birth 1806 RAMSAY A daughter born 11th September 1806 to Major and Mrs Ramsay of Kelly. (Greenock Advertiser 17.9.1806) Birth 1808 GEILS A son born to Major and Mrs Geils of Geilstown, Dumbartonshire on 26th December 1808 at Greenock. (Greenock Advertiser 28.12.1808). -
In This Issue
Issue 537 October 2015 Worth £ 3/0/0 John Gotts’s steams his Ruston Proctor traction engine on to the arena for the first time after a 10 year restoration . Newsletter from the National Steam Centre In This Issue Tractors at National Rally Early Steam Engines Oct 2015 STEAM SUPREME 2 Club Cranes Part 2 Conquip 10 ton Crane By Rohan Lamb In this second part we look at the club’s 10 ton crane. This In 1958 tractor cranes were added to the product range. crane was built by Conquip Ltd., Auburn, NSW. It is a four wheel The first model was a 2¼ to 5 ton trailing-type crane based on a articulated crane with a non-telescopic boom, and rated to 10 tons. conventional tractor with an unrated front steering axle. The crane It was based around a Chamberlain Mk 3 industrial tractor (serial was mounted on a turntable at the rear of the tractor and trailed the no.2648) built in 19711, and fitted with a Perkins 4-270D 4 cylin- tractor during travel, but arched over the top when used for lifting. der diesel engine rated at 62 horsepower. Based on the date the tractor was made, the crane (serial no. A3367) was probably also built in 1971. Conquip was founded in 1947 by A. M. (Neil) Morison as a private business, and manufactured agricultural products such as farm graders, a hiball for land clearing, and blades and loaders for all types of crawler tractors. The company was publically listed in 1952. Early products were designed by the works manager, Bob Wallace who had previously worked as a designer at LeTourneau. -
Steam Engine Collection
STEAM ENGINE COLLECTION The New England Museum of Wireless And Steam Frenchtown Road ~ East Greenwich, R.I. International Mechanical Engineering Heritage Collection Designated September 12, 1992 The American Society of Mechanical Engineers INTRODUCTION It has been said that an operating steam engine is ‘visual music’. The New England Museum of Wireless and Steam provides the steam engine enthusiast, the mechanical engineer and the public at large with an opportunity to experience the ‘music’ when the engines are in steam. At the same time they can appreciate the engineering skills of those who designed the engines. The New England Museum of Wireless and Steam is unusual among museums in its focus on one aspect of mechanical engineering history, namely, the history of the steam engine. It is especially rich in engines manufactured in Rhode Island, a state which has had an influence on the history of the steam engine in the United States out of all proportion to its size and population. Many of the great names in the design and manufacture of steam engines received their training in Rhode Island, most particularly in the shops of the Corliss Steam Engine Co. in Providence. George H. Corliss, an important contributor to steam engine technology, founded his company in Providence in 1846. Engines that used his patent valve gear were built in large numbers by the Corliss company, and by others, both in the United States and abroad, either under license or in various modified forms once the Corliss patent expired in 1870. The New England Museum of Wireless and Steam is particularly fortunate in preserving an example of a Corliss engine built by the Corliss Steam Engine Company.